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SubjectRe: [v4,1/3] drm/msm: Add support for GPU cooling
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On 10/30/2020 2:18 AM, mka@chromium.org wrote:
> On Thu, Oct 29, 2020 at 01:37:19PM +0530, Akhil P Oommen wrote:
>> Register GPU as a devfreq cooling device so that it can be passively
>> cooled by the thermal framework.
>>
>> Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org>
>> Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
>
> Wait, I did not post a 'Reviewed-by' tag for this patch!
>
> I think the patch should be ok, but I'm still not super happy
> about the resource management involving devfreq in general (see
> discussion on https://patchwork.freedesktop.org/patch/394291/?series=82476&rev=1).
> It's not really something introduced by this patch, but if it ever
> gets fixed releasing the cooling device at the end of
> msm_gpu_cleanup() after everything else might cause trouble.
>
> In summary, I'm supportive of landing this patch, but reluctant to
> 'sign it off' because of the above.
>
> In any case:
>
> Tested-by: Matthias Kaehlcke <mka@chromium.org>
Sorry, Matthias. My mistake. You shared the reviewed tag for the
dt-bindings update. Will fix this ASAP. Thanks for verifying this.

-Akhil.
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